#include <stdio.h>


/*
 * 1.数组名是常量,不能修改
 * 2.sizeof(数组名),测数组的总大小:5* int[10] = 5*4*10 = 200
 * 3.sizeof(a[0]),测的是第0个元素的大小
 * 4.sizeof(a[0][0]),测的是第0行0列元素的大小
 */
int main(int argc, char const *argv[])
{
    int a[5][10];
    printf("sizeof(a) = %lu\n", sizeof(a));
    printf("sizeof(a[0]) = %lu\n", sizeof(a[0]));
    printf("sizeof(a[0][0]) = %lu\n", sizeof(a[0][0]));
    


    return 0;
}
